78980490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1999}}^1$

素因数の和:2451

約数の個数: 48

約数和(自身を含む): 205920000

約数和(自身を除く): 126939510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 439, 878, 1317, 1999, 2195, 2634, 3951, 3998, 4390, 5997, 6585, 7902, 9995, 11994, 13170, 17991, 19755, 19990, 29985, 35982, 39510, 59970, 89955, 179910, 877561, 1755122, 2632683, 4387805, 5265366, 7898049, 8775610, 13163415, 15796098, 26326830, 39490245, 78980490]

約数ペア:

[(1, 78980490), (2, 39490245), (3, 26326830), (5, 15796098), (6, 13163415), (9, 8775610), (10, 7898049), (15, 5265366), (18, 4387805), (30, 2632683), (45, 1755122), (90, 877561), (439, 179910), (878, 89955), (1317, 59970), (1999, 39510), (2195, 35982), (2634, 29985), (3951, 19990), (3998, 19755), (4390, 17991), (5997, 13170), (6585, 11994), (7902, 9995)]